|Application:||Slim Hole Downhole Testing Service||Tool Size:||3 7/8 Inch|
|Working Pressure:||15000 Psi||Standard:||NACE MR 0175|
|Connection:||2 7/8 CAS. BXP||Working Condition:||H2S Above 175oF|
|Material:||AISI Alloy Steel||Package:||Polywood Case|
dst drill stem test,
oil well drilling tools
Slim Hole Drilling Tool DST Sleeve Rpture Disk Ful Flo Sampler 3 7/8" 15000 PSI
Introduction of the Rupture Disk Sampler
The RD Sampler is a full open sleeve type sampler for use on drill stem tests service. This Rupture Disk sampler is operated by increasing annulus pressure to a predetermined level to initiate the closing of the tool. The sleeve rupture disk sampler retains its full open capabilities even after it has trapped its sampler. Several of these samplers may be run on a test to allow sampling at different times.
Specification of 3 7/8" Rupture Disck Sampler
|Nominal Tool Size /in||OD /in||ID /in||Length /in||Working Pressure / psi||Sample Volume /CC||Thread Connections|
|3 7/8||3.9||1.8||131||15,000||1,200||2 7/8 CAS|
Operation of 3 7/8" Rupture Disck Sampler
The RD sampler is the full bore sampler, controlled by a pressure-operated rupture disk and has a sample mandrel with a built-in differential area. In order to catch a sample in the downhole operation, annulus pressure is increased to a predetermined level, the rupture disk in the sampler breaks, and the mandrel traps the sample.
When the rupture disk breaks, the differential area of the sample mandrel is exposed to an air chamber on one side and hydrostatic pressure and applied annulus pressure on the other. This condition results in the sample mandrel moving up and trapping the sample. When the sample mandrel reaches the top of its stroke, it is locked in place by a set of locking dogs.
The 1,200-cc sample chamber allows a sufficient sample for two 500-cc non- monophasic (bulk) samples.
When the RD sampler is pulled out to the surface, attach sampling pipes or sampling transfer device,connect testing pump with rupture disc case, increase the water pressure to the bottom of piston through pressure ports, and open the sampling valve stem on the sampler case at the same time, the water push the piston up under pressure, make the sample out of sampling chamber to realize sampling or sampling transfer.
About Techcore Oil Tools
Techcore Oil Tools expertise in manufacture of the Drill Stem Testing Tools for more than Ten years, the professional Reserch and Development (R&D) department improves the advanced technology in design of the Drill stem testing tools for well testing service.
Techcore designs and chooses the raw material of DST tools according to the customers' oil well condition, and make all our effort to supply the cost effective well testing tools to satisfy the customer, and improve the test tools to meet the industry’s demand for ultra-high pressure and temperature downhole operation.
We approach every client’s enquiry with meticulous attention to technical specifications, and a high level of appreciation for their urgency.
Contact Person: Lee