The Cameron U BOP blowout preventers are the most widely used ram-type BOP for land, platform (platform rigs) and subsea applications worldwide and offers the widest range of sizes of any Cameron ram-type BOP. Like all other Cameron preventers, the rams in the U BOP are pressure-energized. Wellbore pressure acts on the rams to increase …
Blowout Preventers (BOP) Stack is one of the rig components used to seal the wellbore and thereby contain a kick ( check drilling kick). Two main types of BOP preventers are used in the industry (both types are discussed below). This article will discuss its BOP blowout preventers stack classification, components & types. API Classification …
1) FUNDAMENTAL PRINCIPLES OF WELL CONTROL 2) INTRODUCTION TO KICKS WHILE DRILLING WELLS 3) KICK INDICATORS OBJECTIVES The objectives of this section are to review the indication of a kick. Early warning signs will be covered as well as positive kick signs. 4) IWCF- SHUT IN PROCEDURES ON A FIXED RIG 5) METHODS OF WELL …
Application During operations on drilling or producing well, a sequence of events may require tubing, casing, or drill pipe to be run or pulled while annular pressure is contained by blowout preventers; such practice is called “stripping operation”. Stripping is normally considered an emergency procedure to maintain well control; however, plans for certain drilling, completion, …
To cover the methods of well control for fixed rigs, cover the special considerations for subsea rigs (Types of drilling rigs), and look at step-down graphs for deviated and horizontal wells. General Well Control Methods The objective of the various kill methods is to circulate out any invading fluid and circulate a satisfactory weight of …
The volumetric method is mostly used in workover and production well control operations. It allows the gas to migrate (gas kick behavior) to the surface under control. The gas needs to migrate at over (approx.) 1000′ per hour. To allow the bubble to expand the casing pressure is held constant for a given volume of …
What Is the Wait & Weight Killing Method? The Wait and Weight are sometimes called the Engineers or One Circulation Method. At least, in theory, it kills the well in one circulation. Once the well is shut in (hard shut-in well procedure – Soft shut-in procedure) and pressures are stabilized, the shut-in drill pipe pressure …
In Driller’s Method, the Kill is split into two circulations to fully control the well. Advantages Driller’s Method In Well Control Disadvantages Applications This method is mostly used on small land rigs where the Driller (check also: driller job description) may have little help and limited equipment. It is also used on highly deviated and …
Kill Mud is the drilling fluid with a specific weight that will restore the primary well control and will secure the well on its own without the need of closing the BOP stack or any secondary well control. Balance of Pressures Once the well is shut-in providing nothing has broken down, the pressures in the …
Our objective is to cover the shut-in procedures for a surface BOP Stack in case of well control issues & to cover A.P.I. recommendations for these procedures, which include advantages and disadvantages. When any positive indications of a kick (also check: Kick warning signs) are observed and a check shows that the well is flowing, …