integral drill pipe pup joint free sample

It is a short drill pipe used to adjust the overall length of drill string. The surface of Drill Pipe Pup joint looks like a smaller version of joint of drill pipe.

The minimum yield strength of Drill Pipe Pup Joint is 120000 PSI, just like the Tool Joint of the Drill Pipe. We manufacture Drill Pipe Pup Joints of all sizes, grades, and thread profiles to meet any custom requirements.

All our products have passed the ISO certification and API certifications.We have become the reliable exporter of Drill Pipe Pup Joint in India. Our products are tested numerous times under technical guidance and are made from best quality material.

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Heavy Weight Drill Pipes are machined from 31ft bars of AISI 4145H Mod. alloy steel, full-length quenched and tempered to obtain the API Spec.7-1, NS-1 and DS-1 mechanical properties.

Besides casing and tubing, it also includes pup joints, coupling stock, coupling material, and accessory materials, and establishes requirements for three product specification levels (PSL-1, PSL-2, and PSL-3). The requirements for PSL-1 are the basis of this standard.

According to API 5CT standard, steel material used for making the pipe billet supplied shall be grain refining treatment. This steel shall contain one or more grain refining elements, such as a certain amount of aluminum, niobium, vanadium or titanium, so that the austenite grains of the steel Grain refinement.

A separately heat treated coupling blank is acceptable. If the finishing temperature is higher than the upper critical temperature of the treated steel and the pipe is air cooled, it shall be considered to be normalized.

C90 and T95 products can be cold-rotated straightened, but the pipe must be heated to a minimum temperature of 480 ℃(1000°F) degrees for stress relief after straightening. If necessary, light gag straightening for steel grade C90 and T95 products are allowed.

The product shall meet the tensile performance requirements specified in this standard. The tensile properties of the upset casing and tubing (except for elongation) shall be consistent with the requirements of the pipe body. In case of dispute, the properties of the upset area (except for the elongation) shall be determined by cutting the specimen from the upset.

In the dimensional table of this standard, the pipe is named with the labels and sizes (outer diameter). The outer diameter of external upset pipe refers to the outer diameter of the pipe body, not the outer diameter of upset portion.

The pipe shall be supplied in accordance with the sizes, wall thickness and tolerance masses specified on the order. Other plain end pipe sizes and wall thicknesses are available upon purchase and manufacturer agreement. Coupling stock, coupling materials and accessory materials shall be supplied in the required size of the order, or the size of the coupling material shall be as specified in the manufacturer’s internal requirements.

Following tolerances apply to the outside diameter of the pipe body immediately behind the upset for a distance of approximately 127 mm (5.0 in) for sizes Label 1: 5-1/2 and smaller, and a distance approximately equal to the outside diameter for sizes larger than Label 1: 5-1/2. Measurements shall be made with callipers or snap gauges.

Flat end pipe is a pipe supplied with unmachined threads, and It may upset or not , but it shall comply with all requirements of a specific steel grade in this standard.

The “round” or “bullet-nose” type of pipe end may be provided by the manufacturer or specified by the purchaser to replace the conventional corner breaks on the threaded ends of external upset tubing. The improved end should be rounded so that the coating is applied and the inner and outer surfaces are rounded and smooth, without sharp corners, burrs.

The initial impetus for developing 2,000,000-lbf landing strings was the fact that failures in the field were being experienced with loads less than equipment ratings. This paper pertains to the technological development of a completely integrated landing system that provides the ability to extend the deepwater drilling and completion envelope. This system comprises an elevator, slipless spider, and landing string—all specifically designed to land heavy-casing strings in deepwater wells and thus overcome the load limitations of conventional equipment. All stages of evolution are analyzed, including research, development, design, verification testing, manufacturing, prooftesting, running, handling, and actual case histories detailing field use. Actual verification-testing loads were over 5,200,000 lbf, and proof-testing loads were 3,000,000 lbf. Unique manufacturing challenges and solutions associated with the production of ultrathick wall landing strings, with 2,000,000 lbf at super-premium-yield ratings

The week started with drilling in the advanced circulation obviation retrofit kit (ACORK) (10¾ inch) casing in Hole U1518H, which reached a total depth of 427 m at 0715 h on 25 March. Τhe ACORK landed in the reentry cone and was released from the running tool, but it took several attempts to pull the underreamer and bit back into the casing, with the drilling assembly finally becoming free at 1040 h. The subsea camera was recovered so that the remotely operated vehicle (ROV) platform could be deployed.

The platform was assembled around the drill string in the moonpool and released at 1200 h. When the subsea camera was redeployed, it showed that the platform had landed at an angle but would not pose a problem for deploying the ACORK funnel. The subsea camera was retrieved, the funnel was assembled around the drill pipe on the moonpool and released, and the subsea camera was redeployed, showing that the funnel had landed correctly. After the subsea camera was retrieved, we recovered the drill string at 0305 h on 26 March.

Next, we checked the ACORK casing for cuttings and inspected the ROV platform and funnel. A drilling assembly made up with a 9⅞ inch mill tooth bit reached the seafloor at 1015 h. The wellhead was inspected with the subsea camera, showing that the guide base is sitting on a slight slope and the ROV platform is hung up just below the ACORK head. An attempt to bump the platform into position with the bit was unsuccessful and the ACORK funnel was reentered at 1335 h. Upon reentry, the hole was discovered to be nearly full of cuttings. We spent the next ~8 h cleaning the cuttings out of the casing to prepare it for installing a bridge plug. The hole was swept with mud and we recovered the drill bit from the seafloor at 0305 h on 27 March.

A bottom-hole assembly was then made up with a bridge plug to seal the base of the 10¾ inch ACORK casing. Once the drill string reached the seafloor at 1215 h, the subsea camera was deployed and Hole U1518H was reentered at 1400 h. The end of the drill string was positioned at 421 m inside the ACORK casing, and the bridge plug was activated until the bridge plug’s packer was set at 1845 h. We recovered the drill string, and the running tool used to install the bridge plug reached the rig floor at 0010 h on 28 March.

In preparation to install the CORK-II stage of the observatory, we had ordered replacement seals to be sent to the vessel. Because we were not able to receive them in time to immediately commence with CORK-II operations, we moved to Site U1520 (proposed Site HSM-05A) where logging-while-drilling (LWD) data had been collected during Expedition 372. Our plan was to prepare for deep coring at Site U1520 by installing a reentry system and 642 m of casing while waiting for the R/V Tangaroa to deliver the CORK-II seals. We started the 12.5 nmi transit to Site U1520 at 0048 h on 28 March.

Once we arrived at Site U1520 at 0257 h on 28 March, we started fabricating the base of the reentry cone, which was completed and moved to the moonpool at 0630 h. Then we assembled the hydraulic release tool (HRT) needed to deploy the reentry system and set it in the derrick at 0900 h. Finally, we completed the casing string by assembling and welding together 54 joints of 10¾ inch casing and a casing shoe, and we secured it in the moonpool at 0130 h on 29 March.

Next, we put together a drilling assembly to drill in the reentry system. The drilling assembly was composed of a 9⅞ inch drill bit, an underreamer, and a mud motor to rotate the bit and underreamer in isolation from the casing. The underreamer arms were tested and the drilling assembly was completed and landed inside the casing by 0500 h. The drilling assembly and HRT were then connected to the casing and mud skirt by 0730 h, and the reentry cone was assembled and welded by 1030 h on 29 March.

The subsea camera was deployed to monitor the reentry cone and base while drilling it into the seafloor. Hole U1520C was started at 1940 h and it took ~27 h for the bit to reach a total depth of 646 m, with the casing shoe at 642 m. Once the drilling system was released from the reentry system at 2230 h on 30 March, we recovered the subsea camera and then the drill string at 1120 h. With the reentry system completed, we departed for Site U1518 at 1310 h on 31 March.

We returned to Hole U1518H at 1506 h on 31 March. We spent the rest of this week assembling the CORK-II casing string in preparation for deploying it inside the ACORK that was installed earlier in the week. The 412 m long CORK-II casing string is composed of 29 full joints and a pup joint (342 m) of 4½ inch drill pipe, two ~12 m swellable-packer joints, one ~11 m quadrant-seal joint, four 6¾ inch drill collars (~36 m), and a bull nose.

Logging-while-drilling (LWD) data were provided to other laboratory teams for comparison with core data. We created synthetic seismic traces to tie core, log, and seismic data together, and used them to correlate the log data to the seismic profile. The seismic units defined by the Expedition 372 science party were revised accordingly. Correlations between LWD data (Holes U1518A and U1518B) and core data (Holes U1518E and U1518F) were presented at the science meeting. Finally, an analysis of LWD data from Hole U1520B was used to assist with selecting the location and casing depths for Hole U1520C.

Lift Plugs are small easy-to-handle subs that make up to the top of the drill collars. They have a lifting flange that serves as a safety stop when drill collars without elevator recesses are being tripped out of the hole. The center section of the Lift Plugs are bored out to reduce weight for easy handling.

Lift Subs enable the safe, efficient handling of straight OD tubulars such as drill collars, shock tools, jars, directional equipment and other tools by using the drill pipe elevators.

AOS pup joints are machined from integral bars of chromium molybdenum alloy steel heat treated to drill collar specifications. Pup joints with tool joint OD less than 6 7/8” have a minimum yield strength of 110,000 psi. Pup joints with tool joint OD 6 7/8”and larger have a minimum yield strength of 100,000 psi.

Pup joints are available in 5’, 10’, 15’ and 20’ lengths and can be ordered to match standard drill pipe dimensions. The primary use of the pup joints is to adjust the overall length of the drill string to land at a specific depth while staying within the working area of the Kelly.