Deployment and Risk Mitigation
The benefits of using wireline to convey logging instruments are negated if the tool string becomes stuck during logging operations and adds the cost of a fishing trip or even worse, a lost tool string.
Operators around the world are reducing this risk by incorporating LockJar® technology in the tool string. The LockJar's unique design provides a simple yet very effective means of freeing a stuck tool string, significantly reducing the operator's risk of logging a well with wireline. The system is rated for use in wellbore environments up to 400 degrees Fahrenheit and up to 30,000 psi, making it functional in most deepwater and hostile applications.
Rated up to 500°F and up to 30,000 psi, the versatile LockJar® hydraulic jar is hydraulically actuated and equipped with a mechanical lock that can be manually adjusted during shop assembly to trigger at a desired over pull. This provides a simple, yet very effective, means of freeing a stuck tool string and significantly reduces risk when perforating a well or recovering pipe.
Halliburton is excited that Evans Engineering, Inc., the innovative leader in hydraulic jar technology is now a part of Halliburton. Combining 30 years’ experience in design, maintenance and quality control with Halliburton's fleet of direct-drive hydraulic systems, ultra-high-strength cables, and releasable cable heads, will help reduce risk of nonproductive (NPT) rig time and expensive fishing jobs in both open and cased-hole logging applications.
