... . Conclusion A finite element model of pipe string is implemented based on Python. The parameters of the model include: length of casing string (including length of each section), wall thickness, casing diameter, steel grade, internal and external pressure load of casing string and axial load. Using...

... in the tubing string; internal pressure, external pressure, axial loads due to the pipe weight, axial loads due to pressure and packer forces, and bending loads. In tubing design and analysis, these parameters are often analyzed uniaxially or, as with combined tension and external pressure loading, biaxially...

... external pressure hydrogen chloride light alloy internal pressure oilfield chemistry casing and cementing threaded connection alloy construction aluminium alloy sulfamic acid tensile load IPTC 14888 Aluminium Alloys for Casing and Tubing Basovich V.S, Gelfgat M.Ya, SPE, Basovich D.V, SPE...

... the well bottom-hole design. Such nature of formation stimulation resulting in high temperature differences causes creeping and thermal fatigue of the casing string metal. In selection of a production string design thermal loads rather than collapsing pressures and axial loads from the string weight...

... workover designs and planning and other well operations. Every tubing possesses four possible failure modes 4 : Parting under axial load, Bursting due to internal pressure, Collapsing under external pressure, When triaxial stresses exceed the yield stress of the tubing...

... configuration hpht internal pressure brett chandler ct-m57 connection completion string completion installation and operations external pressure casing design casing and cementing xt-m57 connection spe 97587 complex reservoir high pressure high temperature andrei muradov radial load fracture...

... inner pipe drillstem testing deformation vit specimen specimen fillet weld design factor outer tube outer pipe temperature differential internal pressure upstream oil & gas external pressure drillstem/well testing connector load case pipe chevrontexaco Introduction...

... well design is used and surface strings are still exposed when pressure testing deeper liners. External Pressure Profiles for Burst Loads To calculate an effective burst load, the internal pressure profile must be compared to some external pressure that provides a resistance to the casing...

... Axial – tension 1.3 1.3 Axial – compressions 1.3 1.3 Burst 1.1 1.1 Collapse 1.0 1.1 Triaxial 1.25 - Case Study 1: Single-String Multi-Zone (Two) Gas Producer Simulated 3-½ in tubing axial loads are presented at varying tubing load scenarios ( Figure 5 ). Maximum axial...

... of this analysis. Load cases were entered by changing the internal pressure profile (pressure within the inner tubing string) and external pressure profile (being the annulus between outer and inner tubing strings in this model), and also changing the well temperature profile as described previously...

... to the field include deep reservoir depths more than 33,000 ft, formation pressures exceeding 25,000 psi, extended well step-outs and deep-set casing strings resulting in drilling rig hook loads over 2.5 million lbf. To enable successful wells operations, the field is planned to be developed with a new...

... between them.This system reduces heat transfer from production string (tubing) to external annular and decreases loads and stresses working on production and intermediate casing.. If Well A was considered as a production well to EPT, following production development strategy and getting reservoir...

... the seal assembly area as shown in Figure 3 . Tube movement To prove the above point and as shown in Figure 4 , in the PBR-Tieback completion design, the tubing will move upwards as a result of the loads when applying internal pressure in the completion string. However, in the cemented casing...

... deviated hole with compressive loads significantly higher than this critical buckling load. In some cases it has been assumed that applying internal pressure in the tubing stiffens the tubing, allowing it to be pushed farther into the hole. This paper also summarizes references which show that internal...

.... It is important that the well completion design is capable of withstanding such conditions. The accurate representation and prediction of casing/tubing temperature, pressure profiles and loads in the casing/tubing during all well operations including jet pumping are crucial to assess the integrity...

.... The tieback conductor design considers the interaction of the loads from environmental forces, internal and external casing and tubing weights, thermal expansion, and angular and lateral offsets between the casing strings and the subsea wellhead. The equations required to check the adequacy of the conductor...

... P110 3494 During production operations the casing would be subjected to additional loads due to production from the well. One of the main loads is the tubing leak burst load. Assuming a tubing leak where the shut-in tubing head pressure is applied on top of the packer fluid; the external...

... pumping pressure due to internal friction which increases fuel consumption and emissions. Smaller tubing and higher internal friction can limit the annular velocity that can be achieved, leading to less effective hole cleaning. In many cases friction reducers are added to the circulating system to reduce...

.... The stress state change of a casing string is governed by a sequence of scenarios that may occur, colloquially called a load case. These load cases consist of a series of internal/external pressure profiles as well as an axial stress profile. The axial stress profile includes the effects of self-weight...

... Asian Rock Mechanics Symposium 29 October to 03 November, 2018, Singapore The ISRM International Symposium for 2018 reasonable negative pressure pre design can be carried out, and the negative pressure values should be checked by considering the safety pressure of the tubing, casing and packer...