New chemical injection system
The newly introduced CHEMJEX system injects a variety of process chemicals.
It's engineered for corrosion inhibitor injection and is a pneumatically actuated, positive-displacement skid that provides proportional-to-flow injection and remote flow monitoring through a SCADA communication link.
Systems may be configured to meet a range of uses where liquid chemical is injected into a process or pipeline.
Injection applications include methanol, H2S scavengers, CO2 scavengers, O2 scavengers, accelerants, paraffin inhibitors, scale inhibitors, biocides, amines, and phosphates.
Features include:
- Redundant pneumatically actuated diaphragm pumps each capable of injecting 2.25 gph at as much as 3,000 psi discharge pressure.
- 4-20 ma input-output flow signal capabilities to provide proportional-to-flow injection, flow monitoring, and remote start-up.
- 316 stainless steel tubing throughout.
- Corrosion resistant 316 stainless steel construction frame.
Source: YZ Systems, 3101 Pollok Drive, Conroe, TX 77303.
Rotary steerable system upgrade released
The newly released Sperry-Sun Geo-Pilot Series II rotary steerable system incorporates all of the design elements of the Geo-Pilot Series I system, as well as several new features.
The Series II 7600 system—used in 81/2-105/8 in. holes—at last report had completed 30 runs without a failure and had a 3 month rolling mean time between failure of more than 1,100 hr, the company notes.
Added capabilities include an azimuthal gamma ray sensor 3 ft from the bit. The sensor consists of three independent measurements providing early warning of formation changes in real time, which allows more precise geosteering of the well.
The system has 3D cruise control capability that allows the well trajectory to be held constant and automatically corrects for any walk tendencies, allows precise vertical drilling, and has vertical kick-off capability. The Series II system was recently introduced in the Gulf of Mexico; initial achievements include drilling vertically through salt, keeping inclination below 0.8° for more than 3,000 ft. The well was then kicked off from vertical.
The tool's GeoSpan two-way communication system has proved capable of performing at depths greater than 30,000 ft. This provides operators with on-the-fly command capabilities, eliminating the need to stop and orient the tool.
Newly engineered seal assemblies are now rated to handle 3,500 psi pressure spikes. Tool geometry and control software have been altered to improve deviation performance at low angles and in soft formations. Other software improvements now allow the tool to compensate automatically for an even wider range of formations and hole conditions.
Series II system upgrades are all backwards compatible with the Series I version, and the remaining Geo-Pilot I systems will be upgraded to full Series II specifications by second quarter 2003.
The Geo-Pilot system operates by deflecting a one-piece rotating driveshaft off center between two bearings, pointing the bit in the desired direction.
Source: Halliburton Energy Services, Box 3, Houston, TX 77001.
Storage compound protects pipe threads
A storage compound has been developed that promises pipe thread corrosion protection.
The company says its new BSC applies easily in cold and hot rainy conditions and is removed more readily than other products. The firm says lab and field testing has shown this product's value in corrosion protection over long periods of time.
Source: Bestolife Corp., 2777 Stemmons Freeway, Suite 1800, Dallas, TX 75207.
New packer seals range of casing, open-hole sizes
The new Blue Whale inflatable service packer (ISP) is a high expansion inflatable service tool designed for heavy-duty drilling applications.
It's designed to replace a collection of tools with a single, simple one that operates in a range of environments to reduce total well construction and intervention costs.
The tool promises to seal a range of casing and open-hole sizes in critical applications. The large contact area of the tool's inflatable sealing element allow it to anchor and seal in wellbore conditions such as soft formations, older and deteriorated casing, and fiberglass casing that pose problems for traditional mechanical service tools, the firm says. The element inflates with most drilling fluids and pump pressure. Tubing weight is not required to set the tool.
The Blue Whale can function as a permanent or retrievable bridge plug, a service packer, or a permanent cement retainer in cased or open hole. Its inflatable element allows for expansion ratios of greater than 200% after passing through wellbore restrictions. In addition, a range of available accessory tools can be run with the ISP to perform remedial operations in large-diameter hole.
Source: Baker Oil Tools, 654 N. Sam Houston Pkwy. E., Suite 400, Houston, TX 77060-5919.
